House batteries off gassing with Tripp Lite

Gdetrailer wrote:

dougrainer wrote:
The Walmart batteries you are using ae AUTOMOTIVE design batteries. NOT deep cycle RV batteries. THIS is your problem. Get RV Deep cycle batteries. Doug

Actually, if OP is using group 27 "Marine/RV" battery they are a "combo" use which is intentioned for starting AND TROLLING MOTOR useage.. Kind of a half breed which works half as well for both uses (IE not very well for either use)..

I would however agree with the idea of going with a PURPOSE BUILT DEEP CYCLE battery instead of a combo RV/Marine.

I suspect the OP is expecting way to much from the current selection of battery they have..

The reason for this is a group 27 RV/Marine battery typically has about 80 Ahr of capacity.. Because it is a combo battery, deep discharges to 50% of capacity (40 Ahr) WILL drastically shorten the life of that battery in just a few cycles..

Those combo batteries should not have more than 16 Ahr-20 Ahr removed IF you want to maximize the battery life.. Removing 50% or 40 Ahr will result in replacing the battery every couple of years..

40 Ahr can be easily removed by running a RV furnace overnight and a couple of hrs of some lights and perhaps a few minutes of water pump usage.

On my first TT, I ran one group 27, it just barely had enough capacity to run the furnace by the time I got up in the morning..

Fast forward to my current TT, I use a pair of 6V GC batteries which powers my home fridge conversion, furnace and lights and I STILL have considerable capacity left in the morning.

He did not state he was using the DEEP CYCLE Walmart 27 series. I was going by what HE posted and the batteries listed by what he stated are Automotive batteries which would cause his problem since he stated from day 1 he had the problem. Doug